Nice pickup...I just picked up a used 18 from a Craigslist ad the other day for 150.00. The grates were rusted, the inside of the bell had a lot of old dirt on the bottom as lf it was sitting in mud. along side fire ring was full of cobwebs and dirt. But after looking inside closely I noticed no creosote buildup and none also under the lid. It was pretty clean. I figured this person only cooked but never really smoked in the pit so i bought it, and after a few hours of cleaning, i have a 95 percent new WSM. I only need to buy new grates and put a new knob on the firedoor. The owner also had a old cajun bandit door that he never installed because he didn't have the knob that fit. After examination he bought an older door so after I made the hole bigger to fit my extra knob I have a stainless steel door to match. I doesn't hurt to look at local listings...you may get lucky.